Kyle invested in a Roth 401(k) seven years ago when he was 39 years old. He terminated employment with his company this year and received a lump-sum distribution of his Roth 401(k). Kyle's contributions to the Roth account total $32,000 and accumulated earnings on the account total $18,000. He has decided NOT to roll over the funds into another retirement account. How much tax and penalty will Kyle owe on the distribution if he has a 24% marginal tax rate?

a) $0
b) $12,000
c) $7,680
d) $10,800